Foldable mobile terminal

ABSTRACT

A foldable mobile terminal is provided. The foldable mobile terminal includes a rotation mechanism, a first body, a second body, and a display panel assembly. The rotation mechanism includes: a rotation assembly having a position member, a first rotation shaft rotatably coupled to the position member, a second rotation shaft rotatably coupled to the position member, and a sliding member disposed between the first rotation shaft and the second rotation shaft; a base assembly having a base body coupled to the rotation assembly, a first slide base slidably coupled to the base body, and a second slide base slidably coupled to the base body; and a connection assembly coupled to the connection member. The first body is coupled to the first slide base. The second body is coupled to the second slide base. The display panel assembly is mounted on the first body, the second body.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional application of U.S. patent applicationSer. No. 15/924,977, filed on Mar. 19, 2018, which claims priority to aChinese application No. 201720417277.3 filed on Apr. 19, 2017, titled“ROTATION MECHANISM AND FOLDABLE MOBILE TERMINAL”. The entirety of theabove-mentioned applications is hereby incorporated by reference herein.

TECHNICAL FIELD

The present disclosure relates to the field of consumer electronics ingeneral. More particularly, and without limitation, the disclosedembodiments relate to a foldable mobile terminal.

BACKGROUND

Mobile phones with a large screen play an excellent role in improvinguser experience and visual effect, and possess obvious advantagesparticularly in business communication, playing games, watching moviesand the like.

Currently, a foldable mobile phone may have a large display panel. Thelarge display panel can satisfy demand of a user for larger screen. Asize of the foldable mobile phone can be changed by folding andunfolding. Generally, a foldable mobile phone includes a flexibledisplay panel. The flexible display panel is mounted on a foldablehousing. The foldable housing includes a first housing and a secondhousing rotatably coupled to the first housing. Therefore, a hingeassembly configured to connect the first housing and the second housingis needed.

SUMMARY

In accordance with an aspect, in one embodiment of the presentdisclosure, a foldable mobile terminal is provided. The foldable mobileterminal includes a plurality of rotation mechanisms, a first body, asecond body, and a display panel assembly. The rotation mechanismincludes a rotation assembly, a base assembly, and a connectionassembly. The rotation assembly includes a position member, a firstrotation shaft rotatably coupled to the position member, a secondrotation shaft rotatably coupled to the position member and separatedfrom and parallel to the first rotation shaft, and a sliding memberslidably disposed between the first rotation shaft and the secondrotation shaft. The sliding member is capable of being driven to movealong a direction parallel to an axis of the first rotation shaft byrotating the first rotation shaft and the second rotation. The baseassembly includes a base body coupled to the rotation assembly, a firstslide base slidably coupled to the base body, and a second slide baseslidably coupled to the base body. The second slide base and the firstslide base are located at two opposite sides of the base body. Theconnection assembly is coupled to the connection member, and rotatablyand slidably coupled to the base body and configured to be moved by thesliding member so as to make the first slide base and the second slidebase to slide relative to the base body along a direction perpendicularto the first rotation shaft. The first body is coupled to the firstslide bases of the rotation mechanisms. The second body is coupled tothe second slide bases of the rotation mechanisms. The display panelassembly is mounted on the first body, the second body, and the rotationmechanism.

In accordance with another aspect, in one embodiment of the presentdisclosure, a foldable mobile terminal is provided. The foldable mobileterminal includes a plurality of rotation mechanisms, a first body, asecond body, and a display panel assembly. The rotation mechanismincludes a rotation assembly, a base assembly, and a connectionassembly. The rotation assembly includes a position member, a firstrotation shaft rotatably coupled to the position member, a secondrotation shaft rotatably coupled to the position member and separatedfrom and parallel to the first rotation shaft, and a sliding memberdisposed between the first rotation shaft and the second rotation shaft.A distance between the first rotation shaft and the second rotationshaft is remained constant by the position member. The sliding member ismoved along a direction parallel to an axis of the first rotation shaftby rotating the first rotation shaft and the second rotation. The baseassembly includes a base body coupled to the rotation assembly, a firstslide base slidably coupled to the base body, and a second slide baseslidably coupled to the base body; wherein the second slide base and thefirst slide base are located at two opposite sides of the base body. Thesecond slide base and the first slide base are located at two oppositesides of the base body. The connection assembly is coupled to theconnection member, and rotatably and slidably coupled to the base bodyand configured to couple the first slide base and the second slide baseto the connection member so as to make the first slide base and thesecond slide base to slide relative to the base body. The first body iscoupled to the first slide bases of the rotation mechanisms. The secondbody is coupled to the second slide bases of the rotation mechanisms.The display panel assembly is mounted on the first body, the secondbody, and the rotation mechanism.

In accordance with still another aspect, in one embodiment of thepresent disclosure, a foldable mobile terminal is provided. The foldablemobile terminal includes a plurality of rotation mechanisms, a firstbody, a second body, and a display panel assembly. The rotationmechanism includes a rotation assembly, a base assembly, and aconnection assembly. The rotation assembly includes a position member, afirst rotation shaft rotatably coupled to the position member, a secondrotation shaft rotatably coupled to the position member and separatedfrom and parallel to the first rotation shaft, and a sliding memberdisposed between the first rotation shaft and the second rotation shaft.A distance between the first rotation shaft and the second rotationshaft is remained constant by the position member. The base assemblyincludes a base body coupled to the rotation assembly, a first slidebase slidably coupled to the base body, and a second slide base slidablycoupled to the base body; wherein the second slide base and the firstslide base are located at two opposite sides of the base body. Thesecond slide base and the first slide base are located at two oppositesides of the base body. The connection assembly is coupled to theconnection member, and rotatably and slidably coupled to the base body.The first body is coupled to the first slide bases of the rotationmechanisms. The second body is coupled to the second slide bases of therotation mechanisms. The display panel assembly is mounted on the firstbody, the second body, and the rotation mechanism.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate exemplary embodiments of thepresent disclosure, and together with the description, serve to explainthe principles of the disclosure.

FIG. 1 illustrates a schematic view of a rotation mechanism, inaccordance with an embodiment of the present disclosure.

FIG. 2 illustrates an exploded view of the rotation mechanism in FIG. 1.

FIG. 3 illustrates an exploded view of a rotation assembly of therotation mechanism in FIG. 2.

FIG. 4 illustrates a schematic view of a rotation assembly and aconnection assembly of the rotation mechanism in FIG. 2.

FIG. 5 illustrates an enlarged view of part V in FIG. 2.

FIG. 6 illustrates a partial schematic view of a rotation assembly, abase assembly and a connection assembly of the rotation mechanism inFIG. 2.

FIG. 7 illustrates an exploded view of a first base body and a firstslide base of the base body in FIG. 2.

FIG. 8 illustrates a schematic view of a damping assembly of therotation mechanism in FIG. 2.

FIG. 9 illustrates an exploded view of a foldable mobile terminal, inaccordance with an embodiment of the present disclosure.

FIG. 10 illustrates a schematic view of a supporting assembly of thefoldable mobile terminal in FIG. 9.

FIG. 11 illustrates the foldable mobile terminal in FIG. 10, which is inan unfolded mode.

FIG. 12 illustrates the foldable mobile terminal in FIG. 10, which thefoldable mobile terminal is in an angular mode.

FIG. 13 illustrates the foldable mobile terminal in FIG. 10, which thefoldable mobile terminal is in a folded mode.

DETAILED DESCRIPTION OF EMBODIMENTS

This description and the accompanying drawings that illustrate exemplaryembodiments should not be taken as limiting. Various mechanical,structural, electrical, and operational changes may be made withoutdeparting from the scope of this description and the claims, includingequivalents. In some instances, well known structures and techniqueshave not been shown or described in detail so as not to obscure thedisclosure. Similar reference numbers in two or more figures representthe same or similar elements. Furthermore, elements and their associatedfeatures that are disclosed in detail with reference to one embodimentmay, whenever practical, be included in other embodiments in which theyare not specifically shown or described. For example, if an element isdescribed in detail with reference to one embodiment and is notdescribed with reference to a second embodiment, the element maynevertheless be claimed as included in the second embodiment.

As used herein, a “communication terminal” (or simply a “terminal”)includes, but is not limited to, a device that is configured toreceive/transmit communication signals via a wireline connection, suchas via a public-switched telephone network (PSTN), digital subscriberline (DSL), digital cable, a direct cable connection, and/or anotherdata connection/network, and/or via a wireless interface with, forexample, a cellular network, a wireless local area network (WLAN)1 adigital television network such as a DVB-H network, a satellite network,an AM/FM broadcast transmitter, and/or another communication terminal. Acommunication terminal that is configured to communicate over a wirelessinterface may be referred to as a “wireless communication terminal,” a“wireless terminal” and/or a “mobile terminal.” Examples of mobileterminals include, but are not limited to, a satellite or cellularradiotelephone; a Personal Communications System (PCS) terminal that maycombine a cellular radiotelephone with data processing, facsimile anddata communications capabilities; a PDA that can include aradiotelephone, pager, Internet/intranet access, Web browser, organizer,calendar and/or a global positioning system (GPS) receiver; and aconventional laptop and/or palmtop receiver or other appliance thatincludes a radiotelephone transceiver.

As illustrated in FIG. 1 and FIG. 2, the rotation mechanism 100 mayinclude a rotation assembly 10, a connection assembly 30, a baseassembly 50, and a housing assembly 90. The rotation assembly 10 ismounted on the base assembly 50. The connection assembly 30 is coupledto the rotation assembly 10. The connection assembly 30 is also mountedon the base assembly 50 and coupled to the base assembly 50. The housingassembly 90 is disposed on the base assembly 50 and configured to coverand receive the rotation assembly 10 mounted on the base assembly 50.

The base assembly 50 may include a base body 52, a first slide base 54,and a second slide base 56. The first slide base 54 can be slidablycoupled to one side of the base body 52. The second slide base 56 can beslidably coupled to another side of base body 52. The first slide base54 and the second slide base 56 are separated from each other. The firstslide base 54 and the second slide base 56 can be symmetricallyarranged, about the base body 52. The rotation assembly 10 can becoupled to the base body 52. The connection assembly 30 can be coupledto the rotation assembly 10, the first slide base 54, and the secondslide base 56. The connection assembly 30 can be driven to move relativeto the base body 52 by rotating the rotation assembly 10, therebydriving the first slide base 54 and the second slide base 56 to sliderelative to the base body 52.

As illustrated in FIG. 3 and FIG. 4, the rotation assembly 10 mayinclude a rotation member 14, a positioning member 12, a sliding member16, and a connection member 18 (see in FIG. 4). The rotation member 14can be rotatably coupled to the positioning member 12. The slidingmember 16 can be slidably coupled to the rotation member 14. The slidemember 16 can be driven to slide along an axis of the rotation member 14by rotating the rotation member 14.

In one embodiment, the rotation member 14 can include a first rotationshaft 141 and a second rotation shaft 143. The first rotation shaft 141and the second rotation shaft 143 can be rotatably coupled to thepositioning member 12. The first rotation shaft 141 and the secondrotation shaft 143 are substantially parallel to each other andseparated from each other. The first rotation shaft 141 can be rotatedaround an axis thereof relative to the position member 12, and thesecond rotation shaft 143 can be rotated around an axis thereof relativeto the positioning member 12.

The first rotation shaft 141 can include a first part 1411, a secondpart 1415 and a third part 1413. The second part 1415 is located betweenthe first part 1411 and the third part 1413. In other words, the firstpart 1411 is coupled to one end of the second part 1415, and the thirdpart 1413 is coupled to the other end of the second part 1415. Across-sectional configuration of the second part 1415 is substantiallycircular. A cross-sectional configuration of each of the first part 1411and the third part 1413 is substantially square-shaped. The second part1415 can define a number of first inclined slots 1416 on an outersurface thereof. Two first inclined slots 1416 are illustrated in theFIG. 3. In another embodiment, the second part 1415 can define oneinclined slot 1416 or more than two first inclined slots 1416. Anextending direction of the first inclined slots 1416 can be unparallelto the axis of the first rotation shaft 141. For example, each of thefirst inclined slots 1461 defined on the outer surface of the secondpart 1415 is spirally extended around the axis of the first rotationshaft 141. A position of one end of the first inclined slot 1416 candefine one axial cross section, and a position of the other end of thefirst inclined slot 1416 can define the other axial cross section. Anangle of the one axial cross section and the other axial cross sectioncan be equal to or more than 90°. A rotation angle of the first rotationshaft 141 can be determined by the angle. The rotation angle of thefirst rotation shaft 141 can be equal to the angel (i.e., the rotationangle can be equal to or more than) 90°.

The second rotation shaft 143 is substantially similar to the firstrotation shaft 141. The second rotation shaft 143 can include a firstpart 1431, a second part 1435, and a third part 1433. The second part1435 can define a number of second inclined slots 1436 on an outersurface thereof and face the first inclined slots 1416. Two secondinclined slots 1436 are illustrated in the FIG. 3. An extendingdirection of the second inclined slots 1436 can be unparallel to theaxis of the second rotation shaft 143 (i.e., the axis of the firstrotation shaft 141). For example, each of the second inclined slots 1436defined on the outer surface of the second part 1435 is spirallyextended around the axis of the second rotation shaft 143. A position ofone end of the second inclined slot 1436 can define one axial crosssection, and a position of the other end of the inclined slot 1436 candefine the other axial cross section. An angle of the one axial crosssection and the other axial cross section can be equal to or more than90°. A rotation angle of the second rotation shaft 143 can be determinedby the angle. The rotation angle of the second rotation shaft 143 can beequal to the angel (i.e., the rotation angle can be equal to or morethan) 90°. The first inclined slots 1416 of the first rotation shaft 141and the second inclined slots 1436 of the second rotation shaft 143 canbe substantially symmetrical.

The first inclined slots 1416 and the second inclined slots 1436 areconfigured to be coupled to the sliding member 16. Thus, the slidingmember 16 can be coupled to the first rotation shaft 141 and the secondrotation shaft 143. By rotating the first rotation shaft 141, thesliding member 16 can be guided to slide in the first inclined slots1416. Thus, the sliding member 16 can be driven to move along the axisof the first rotation shaft 141. Meanwhile, the sliding member 16 canalso slide in the second inclined slots 1436, thereby rotating thesecond rotation shaft 143. A rotation direction of the first rotationshaft 141 is opposite to a rotation direction of the second rotationshaft 143.

In one embodiment, the positioning member 12 can include a firstpositioning plate 122 and a second positioning plate 124. The firstpositioning plate 122 and the second positioning plate 124 are separatedfrom each other. Each of the first positioning plate 122 and the secondpositioning pate 124 can define two through holes 121 therein. The firstrotation shaft 141 can penetrate through one of the two through holes121, and the second rotation shaft 143 can penetrate through the otherof the two through holes 121. The first rotation shaft 141 can berotated in the corresponding through holes 121 of the first positioningplate 122 and the second positioning plate 124. The second rotationshaft 141 can also be rotated in the corresponding through holes 121 ofthe first positioning plate 122 and the second positioning plate 124. Asmentioned above, the first rotation shaft 141 is separated from thesecond rotation shaft 143. A distance between the axis of the firstrotation shaft 141 and the axis of the second rotation shaft 143 canremain constant by the position member 12. The first positioning plate122, the first rotation shaft 141, the second positioning plate 124 andthe second rotation shaft 143 can define a space 140 for receiving thesliding member 16. Thus, the sliding member 16 can be disposed betweenthe first rotation shaft 141 and the second rotation shaft 143, and canbe coupled to the first rotation shaft 141 and the second rotation shaft143 so as to move along the axis of the first rotation shaft 141 (i.e.,the axis of the second rotation shaft 143).

The sliding member 16 can be located between the first rotation shaft141 and the second rotation shaft 143, and can be coupled to the firstrotation shaft 141 and the second rotation shaft 143. The sliding member16 is configured to be driven to move along the axis of the firstrotation shaft 141 (i.e., the second rotation shaft 143) by rotating thefirst rotation shaft 141 (i.e., the second rotation shaft 143). In oneembodiment, the sliding member 16 can include an engaging portion 161and an extending portion 163 extending from the engaging portion 161.

The engaging portion 161 is located between the first rotation shaft 141and the second rotation shaft 143. The engaging portion 161 is alsobetween the first positioning plate 122 and the second positioning plate124. The engaging portion 161 can include a first sidewall 1611 and asecond sidewall 1613. The first sidewall 1611 and the second sidewall1613 are located on two opposite sides of the engaging portion 161. Thefirst sidewall 1611 may face the second part 1415 of the first rotationshaft 141, and the second sidewall 1613 may face to the second part 1435of the second rotation shaft 143. The first sidewall 1611 can besubstantially a concave surface. A curvature of the first sidewall 1611can be equal to that of the outer surface (i.e., circumferentialsurface) of the second part 1415. Thus, the first sidewall 1611 can beentirely in contact with the outer surface of the second part 1415. Theengaging portion 161 of the sliding member 16 will not be interferencewith the second part 1415 of the first rotation shaft 141 duringrotating the first rotation member 14. A number of first protrusions1612 can be formed on the first sidewall 1611. The first protrusions1612 can be configured to be disposed in the first inclined slots 1416correspondingly. In one embodiment, two first protrusions 1612 areillustrated in FIG. 3. The first protrusions 1612 can be engaged in thefirst inclined slots 1416 and can be guided to slide in the firstinclined slots 1416. For example, by rotating the first rotation shaft141, the first protrusions 1612 can slide in the first inclined slots1416. Meanwhile, the sliding member 16 is driven to move along the axisof the first rotation shaft 141. Otherwise, by driving the slidingmember 16 to move along the axis of the first rotation shaft 141, thefirst protrusions 1612 can slide in the first inclined slots 1316,thereby rotating the first rotation shaft 141.

The second sidewall 1613 can be substantially similar to the firstsidewall 1611. A number of second protrusions (not illustrated) can beformed on the second sidewall 1613. The second protrusions can beconfigured to be disposed in the second inclined slots 1436correspondingly. The second protrusions can slide in the second inclinedslots 1436. For example, by rotating the second rotation shaft 143, thesecond protrusions can slide in the second inclined slots 1436.Meanwhile, the sliding member 16 is driven to move along the axis of thesecond rotation shaft 143. Otherwise, by driving the sliding member 16to move along the axis of the second rotation shaft 143, the secondprotrusions can slide in the second inclined slots 1436, therebyrotating the second rotation shaft 143. The rotation direction of thefirst rotation shaft 141 and the rotation direction of the secondrotation shaft 143 are opposite when the sliding member 16 is driven tomove along the axis of the first rotation shaft 141 (i.e., the secondrotation shaft 143).

In one embodiment, the extending portion 163 is extended far away fromthe second positioning plate 124. The extending portion 163 may includea first extending plate 1631 and a second extending plate 1633. Thefirst extending plate 1631 and the second extending plate 1633 can beseparated from each other and parallel to each other. An extendingdirection of the first extending plate 1631 and the second extendingplate 1633 is substantially parallel to the axis of the first rotationshaft 141 (i.e., the extending direction of the first extending plate1631 and the second extending plate 1633 is substantially parallel tothe axis of the second rotation shaft 143). The first extending plate1631 may have a first connecting end 1632 far away from the engagingportion 161. The first connecting end 1632 defines a connection hole1635 therein. The second extending plate 1633 may have a secondconnecting end 1634 far away from the engaging portion 161. The secondextending plate 1633 defines a connection hole 1636 therein. The firstextending plate 1631 and the second extending plate 1632 are located attwo opposite sides of the first positioning plate 122. That is, thefirst positioning plate 122 is located between the first extending plate1631 and the second extending plate 1633. The first connecting end 1632and the second connecting end 1634 are located outside the space 140 andbetween the first rotation shaft 141 and the second rotation shaft 143.A connection pin 165 can be inserted into the connection hole 1635 andthe connection hole 1636 to couple the first connecting end 1632 to thesecond connecting end 1634.

As illustrated in FIG. 4 and FIG. 5, the connection member 18 is coupledto the sliding member 16. The connection member 18 can include aconnection portion 185, a first connection group 181 and a secondconnection group 183. The first connection group 181 and the secondconnection group 183 are coupled to the connection portion 185. Theconnection portion 185 is coupled to the sliding member 16. For example,the connection portion 185 is located between the first connecting end1632 and the second connecting end 1634. The connection pin 165 can alsopenetrate through the connection portion 185 so as to couple theconnection member 18 to the sliding member 16. Thus, the firstconnection member 181 can be driven to move by the sliding member 16.

In one embodiment, the first connection group 181 may include a firstconnection arm 1811 and a second connection arm 1813 coupled to thefirst connection arm 1811. The first connection arm 1811 can be sleevedon the first rotation shaft 141. The first rotation shaft 141 can berotated in the first connection arm 1811 and can slide along alongitudinal direction of the first connection arm 1811. One end of thefirst connection arm 1811 is coupled to the connection portion 185, theother end of the first connection arm 1811 is coupled the secondconnection arm 1813. The second connection arm 1813 can be substantiallyperpendicular to the first connection arm 1811. That is, the secondconnection arm 1813 is substantially perpendicular to the axis of thefirst rotation shaft 141. One end of the second connection arm 1813 iscoupled to the first connection arm 1811; the other end of the secondconnection arm 1813 can be configured to be coupled to the connectionassembly 30.

The second connection group 183 can be substantially similar to thefirst connection group 181. In one embodiment, the second connectiongroup 183 may include a third connection arm 1831 and a fourthconnection arm 1833 coupled to the third connection arm 1831. The thirdconnection arm 1831 can be sleeved on the second rotation shaft 143. Thesecond rotation shaft 143 can be rotated in the third connection arm1831 and can slide along a longitudinal direction of the thirdconnection arm 1831. One end of the third connection arm 1831 is coupledto the connection portion 185, the other end of the third connection arm1831 is coupled the fourth connection arm 1833. The fourth connectionarm 1833 can be substantially perpendicular to the third connection arm1831. That is, the fourth connection arm 1833 is substantiallyperpendicular to the axis of the second rotation shaft 143. One end ofthe fourth connection arm 1833 is coupled to the third connection arm1831; the other end of the fourth connection arm 1833 can be configuredto be coupled to the connection assembly 30.

When the first rotation shaft 141 is rotated, the first inclined slots1416 can guide the corresponding first protrusions 1612 on the firstsidewall 1611 to slide in the first inclined slots 1416. Then, thesliding member 16 can slide along the axis of the first rotation shaft141. Meanwhile, the second protrusions on the second sidewall 1613 canslide in the corresponding second inclined slots 1436, thereby rotatingthe second rotation shaft 143. A rotation direction of the firstrotation shaft 141 is opposite to a rotation direction of the secondrotation shaft 143. Thus, a rotation angel of the first rotation shaft141 can be equal to a rotation angle of the second rotation shaft 143.

Similarly, when the second rotation shaft 143 is rotated, the secondinclined slots 1436 can guide the corresponding second protrusions onthe second sidewall 1613 to slide in the second inclined slots 1436.Then, the slide member 16 can slide along the axis of the secondrotation shaft 141. Meanwhile, the first protrusions 1612 on the firstsidewall 1611 can slide in the corresponding first inclined slots 1416,thereby rotating the first rotation shaft 141. A rotation direction ofthe first rotation shaft 141 is opposite to a rotation direction of thesecond rotation shaft 143. Thus, a rotation angel of the first rotationshaft 141 can be equal to a rotation angle of the second rotation shaft143. Further, the movement of the sliding member 16 can drive the firstconnection group 181 and the second connection group 183 to slide alongthe axis of the first rotation shaft 141. Thus, the connection assembly30 coupled to the sliding member 16 by the connection member 18 can movewith the sliding member 16.

The connection assembly 30 can be coupled to the connection member 18,the first slide base 54, and the second slide base 56. The connectionassembly 30 can be configured to drive the first slide base 54 and thesecond slide base 56 to slide relative to the base body 52.

In one embodiment, the connection assembly 30 may include a firstconnecting member 31, a first triangular connecting member 33, a secondconnecting member 35, and a second triangular connecting member 37. Thefirst connecting member 31 can be located between and coupled to thefirst connection group 181 and the first triangular connecting member33. The second connecting member 35 can be located between and coupledto the second connection group 183 and the second triangular connectingmember 37. Thus, the movement of the sliding member 16 can drive thefirst triangular connecting member 33 and second triangular connectingmember 37 to move through the connection member 181, the firstconnecting member 31 and second connecting member 35.

In one embodiment, the first connecting member 31 can include a firstconnecting rod 311 and a first connecting plate 313. The firstconnecting rod 311 can be substantially parallel to the first rotationshaft 141. The first connecting rod 311 is coupled to the secondconnecting arm 1813 of the first connection group 181. The firstconnecting plate 313 is substantially perpendicular to the firstconnecting rod 311. One end of the first connecting plate 313 is coupledto the first connecting rod 311, and the other end of the firstconnecting plate 313 is pivoted to the first triangular connectingmember 33. The first connecting plate 313 can be coupled to a middleposition of the first connecting rod 311. The first connecting rod 311can be driven to move along the axis of the first rotation shaft 141 bythe first connection member 181 during sliding the slide member 16.Thus, the first triangular connecting member 33 can be rotated relativeto the first connecting plate 313.

The first triangular connecting member 33 can be substantially atriangular plate. In one embodiment, the first triangular connectingmember 33 can define a first through hole 331 at a first corner thereof.A first pin 333 can be inserted through the first through hole 331 andto be coupled to the first connecting plate 313. Thus, the firsttriangular connecting member 33 can be rotated relative to the firstconnecting plate 313. The first triangular connecting member 33 canfurther define a second through hole 335 at a second corner thereof. Thesecond through hole 335 can be substantially a slotted hole. The firsttriangular connecting member 33 can further define a third through hole337 at a third corner thereof.

The second connecting member 35 can be substantially similar to thefirst transmission member 31. The second connecting member 35 and thefirst connecting member 31 can be symmetrical arranged about the slidingmember 16. The second connecting member 31 can include a secondconnecting rod 351 and a second connecting plate 353. The secondconnecting rod 351 can be substantially parallel to the first rotationshaft 141. The second connecting rod 351 is coupled to the fourthconnection arm 1833 of the second connection group 183. The secondconnecting plate 353 is substantially perpendicular to the secondconnecting rod 351. One end of the second connecting plate 353 iscoupled to the second connecting rod 351, and the other end of thesecond connecting plate 353 is pivoted to the second triangularconnecting member 35. The second connecting plate 353 can be coupled toa middle position of the second connecting rod 351. The secondconnecting rod 351 can be driven to move along the axis of the firstrotation shaft 141 by the second connection member 183 during slidingthe sliding member 16. Thus, the second triangular connecting member 35can be rotated relative to the second connecting plate 353.

The second triangular connecting member 37 can be substantially similarto the first triangular connecting member 33. The second triangularconnecting member 37 can be also pivoted to the second connecting member35. The second triangular connecting member 37 can define a firstthrough hole 371, a second through hole 375, and a third through hole377 at three corners thereof respectively. A second pin 373 can beinserted through the first through hole 371 and to be coupled to thesecond connecting plate 353. Thus, the second triangular connectingmember 35 can be rotated relative to the second connecting plate 353.The second triangular connecting member 37 and the first triangularconnecting member 33 can be symmetrical arranged about the slidingmember 16.

As illustrated in FIG. 2, FIG. 6 and FIG. 7, the base body 52 mayinclude a first base body 521 and a second base body 523. The first basebody 521 can be coupled to the first rotation shaft 141 (see in FIG. 2and FIG. 4). The second base body 523 can be coupled to the secondrotation shaft 143 (see in FIG. 2 and FIG. 4). The second base body 523can be symmetrical to the first base body 521.

The first base body 521 can define a first receiving cutout 5211 at aside adjacent to the second base body 523. The first receiving cutout5211 can be configured to partially receive the first rotation shaft141. The first base body 521 can further define a first locking slot5213 communicated with the first receiving cutout 5211, and a secondlocking slot 5215 communicated with the first receiving cutout 5211. Thefirst locking slot 5213 and the second locking slot 5215 are located attwo opposite ends of the first receiving cutout 5211 and arranged alonga longitudinal direction of the first receiving cutout 5211. Across-sectional configuration of each of the first locking slot 5213 andthe second locking slot 5215 can be square-shaped. Thus, the second part1415 of the first rotation shaft 141 can be received in the firstreceiving cutout 5211, the first part 1411 can be received in the firstlocking slot 5213, and the third part 1413 can be received in the secondlocking slot 5215. The first base body 521 can be rotated with respectto the second base body 523 so that the first rotation shaft 141 can bedriven to rotate relative to the positioning member 12.

The first base body 521 can further define a first receiving slot 5217adjacent to the first receiving cutout 5211. A cross-sectionalconfiguration of the first receiving slot 5217 can be substantiallysquare-shaped. A longitudinal direction of the first receiving slot 5217can be substantially parallel to a longitudinal direction of the firstlocking slot 5213 (i.e., the longitudinal direction of the firstreceiving cutout 5211). The first connecting rod 311 of the firstconnecting member 31 can be slidably received in the first receivingslot 5217. The first connecting rod 311 can slide along the longitudinaldirection of the second receiving slot 5217.

The first base body 521 may include a first guide portion 522. The firstguide portion 522 can be provided at a side far away the first receivingcutout 5211 of the first base body 521. The first guide portion 522 canbe configured to be engaged with the first slide base 54. A raisedelement 5223 can be disposed on the first guide portion 522. The raisedelement 5223 can be raised towards the connection assembly 30, and berotatably inserted through the third through hole 337 of the firsttriangular connecting member 33. Thus, the first triangular connectingmember 33 can be pivoted to the first guide portion 522.

The first guide portion 522 can define a first guide hole 5225 adjacentto the raised element 5223. The first guide hole 5225 corresponds to thefirst through hole 331 of the first triangular connecting member 33. Thefirst guide hole 5225 can be located between the raised element 5223 andthe first receiving cutout 5211. The first guide hole 5225 can besubstantially a slotted hole. A longitudinal direction of the firstguide hole 5225 is substantially parallel to the axis of the firstrotation shaft 141. The first pin 333 engaging with the first throughhole 331 can further penetrate through the first connecting plate 313and be inserted into the first guiding hole 5225. Thus, the base body52, the first connecting plate 313 and the first triangular connectingmember 33 can be rotatably coupled to each other.

The first guide portion 522 can further define a second guide hole 5227adjacent to the first guide hole 5225. The second guide hole 5227corresponds to the second through hole 335 of the first triangularconnecting member 33. The second guide hole 5227 can be substantially aslotted hole. A longitudinal direction of the second guide hole 5227 issubstantially perpendicular to the axis of the first rotation shaft 141.

The second base body 523 can be substantially similar to the first basebody 521. The second base body 523 can be configured to receive thesecond rotation shaft 143, and rotatably coupled to the secondtriangular connecting member 37. The second base body 523 can besubstantially symmetrical to the first base body 521. The first basebody 521 can be rotated with respect to the second base body 523 so thatthe first rotation shaft 141 and the second rotation shaft 143 can bedriven to rotated relative to the positioning member 12.

The first slide base 54 can be slidably coupled to the first guideportion 522 of the first base body 52. The first slide base 54 candefine a first guiding slot 541 corresponding to the first guide portion522. The first guiding slot 541 can be configured to receive the firstguide portion 522. The first guide portion 522 can be engaged in thefirst guiding slot 541. The first guide portion 522 can be capable ofsliding in the first guiding slot 541. Thus, the first slide base 54 canslide relative to the base body 54 along a direction perpendicular tothe axis of the first rotation shaft 141. A length of the base assembly50 along a direction perpendicular to the axis of the first rotationshaft 141 can be changed.

A second pin 543 can be disposed in the first guiding slot 541. Thesecond pin 543 can be configured to slidably couple to the first basebody 521. The second pin 543 can be positioned correspondingly to thesecond through hole 335 of the first triangular connecting member 33 andthe second guide hole 5227. The second pin 543 can penetrate through thesecond guide hole 5227 of the first guide portion 522, and then beinserted into second through hole 335 of the first triangular connectingmember 33. Thus, the first triangular connecting member 33 can berotatably coupled to the first slide base 54. During sliding the firstconnecting member 31 along the axis of the first rotation shaft 141, thefirst triangular connecting member 33 can be rotated around the firstpin 333. A rotation force is applied to the first triangular connectingmember 33 so that the first triangular connecting member 33 can befurther rotated around the raised element 5223. And then, the second pin543 can slide in the second guide hole 5227 due to the rotation of thefirst triangular connecting member 33. As a result, the first slide base54 can slide relative to the first base body 521 along the directionperpendicular to the axis of the first rotation shaft 141. Thus, thelength along the direction perpendicular to the axis of the firstrotation shaft 141 of the base assembly 50 can be changed.

Similarly, the second slide base 56 can be coupled to the second basebody 523. In one embodiment, the second slide base 56 can slidablycoupled to a side of the second base body 523 far away from the firstslide base 54. The second slide base 56 can be substantially similar tothe first slide base 54. The second slide base 56 can be symmetrical tothe first slide base 54, and can be configured to couple to the secondtriangular connecting member 37. When the second connecting member 35slides along the axis of the second rotation shaft 143, the secondtriangular connecting member 37 can be rotated. Meanwhile, the secondslide base 56 can slide relative to the base body 52 along the directionperpendicular to the axis of the second rotation shaft 143. Thus, thelength along the direction perpendicular to the axis of the secondrotation shaft 143 of the base assembly 50 can be changed.

A force can be applied to the base assembly 50 so that the first basebody 521 can be rotated relative to the second base body 522. The firstrotation shaft 141 can be rotated by the first base body 521 and thesecond rotation shaft 143 can be rotated by the second base body 523 intwo opposite rotation directions. Meanwhile, the sliding member 16 canbe driven to move along the axis of the first rotation shaft 141 by thefirst rotation shaft 141 and the second rotation shaft 141. The firstconnecting member 31 and the second connecting member 35 can movetogether with the sliding member 16 along the axis of the first rotationshaft 141. The first triangular connecting member 33 can be rotatedaround the raised element 5223, and the second triangular connectingmember 37 can be rotated simultaneously. The first slide base 54 can bedriven to move along the direction perpendicular to the axis of thefirst rotation shaft 141 by the first triangular connecting member 33;the second slide base 56 can be driven to move along the directionperpendicular to the axis of the second rotation shaft 141 by the secondtriangular connecting member 37. As a result, the length along thedirection perpendicular to the axis of the first rotation shaft 141 ofthe base assembly 50 can be changed. In other words, a first distancebetween the first rotation shaft 141 and the first slide base 54 can bechanged, and a second distance between the second rotation shaft 143 andthe second slide base 56 can be changed. In addition, a rotation angleof the first rotation shaft 141 and a rotation angle of the secondrotation shaft 143 can be identical during rotating the first rotationshaft 141 and the second rotation shaft 143. Thus, a movement distanceof the first slide base 54 can be always identical to a movementdistance of the second slide base 56. The first rotation shaft 141 andthe second rotation shaft 143 can be maintained at an original position,thereby avoiding a deviation along the direction perpendicular to thefirst rotation shaft 141.

As illustrated in FIG. 2 and FIG. 8, the rotation mechanism 100 mayfurther include a damping assembly 70. The damping assembly 70 can becoupled to an end of the rotation assembly 10 and mounted on the firstbase body 521 and the second base body 523. In one embodiment, thedamping assembly 70 can include a damping member 71, a first dampinggroup 73, and a second damping group 75. The first damping group 73 andthe second damping group 75 can be coupled to the base body 52. Thedamping member 71 can be coupled to the first damping group 73 and thesecond damping group 75.

In one embodiment, the first damping group 73 can be coupled to thefirst base body 521. The first damping group 73 can include a firstslave shaft 731, a first damping element 733, a first elastic element735, and a first blocking element 737. The first slave shaft 731 can becoupled to the first base body 521. An axis of the first slave shaft 731can be coaxial to the axis of the first rotation shaft 141. An end ofthe first slave shaft 731 can be fixed to the first base body 521, thusthe first slave shaft 731 can be rotated together with the first basebody 521. The first damping element 733 can be sleeved on the firstslave shaft 731. The first salve shaft 731 can slide along the axisthereof in the first damping element 733 and can not be rotated aroundthe axis thereof relative to the first damping element 733. In oneembodiment, the first damping element 733 can define a through holetherein. The first slave shaft 731 can be engaged in the through hole.The first damping element 733 can be rotated together with the firstslave shaft 731. The first elastic element 735 can be sleeved on thefirst slave shaft 731, and can be located at a side of the first dampingelement 733 far away from the first base body 521. The first elasticelement 735 is located between the first damping element 733 and thefirst blocking element 737. The first blocking element 737 can be fixedto an end of the first slave shaft 731 far away from the first base body521.

The second damping group 75 can be coupled to the second base body 523.The second damping group 75 can be substantially similar to the firstdamping group 73. The second damping group 75 can include a second slaveshaft 751, a second damping element 753, a second elastic element 755,and a second blocking element 757. The second slave shaft 751 can becoupled to the second base body 523. The second slave shaft 751 can becoaxial to the second rotation shaft 143. The second damping element753, the second elastic element 755, and the second blocking member 757can be sleeved on the second slave shaft 751. The second elastic element755 is located between the second damping element 753 and the secondblocking element 737. The second salve shaft 751 can slide along theaxis thereof in the second damping element 753 and can be rotated aroundthe axis thereof together with the second damping element 753. Thesecond slave shaft 751 and the second damping element 753 can be rotatedby the second base body 523.

In one embodiment, the damping member 71 can be located between the basebody 52 and the first and second damping elements 733, 753. The dampingmember 71 can define a first round hole 7111 (see in FIG. 5) and asecond round hole 7113 (see in FIG. 5). The first slave shaft 731 can beinserted through the first round hole 7111, and the second slave shaft751 can be inserted through the second round hole 7113. The first slaveshaft 731 and the second slave shaft 751 can be rotated relative to thedamping member 71.

The damping member 71 can include a support portion 711, a first sleeveportion 713, and a second sleeve portion 715. The support portion 711can be coupled to and located between the first sleeve portion 713 andthe second sleeve portion 715. The first sleeve portion 713 and thesecond sleeve portion 715 can be separated from each other. The firstslave shaft 731 can be inserted through the first sleeve portion 713.The second slave shaft 751 can be inserted through the second sleeveportion 715. The first sleeve portion 713 can have a number ofprotrusions 7131 at an end surface thereof towards the first dampingelement 733. The protrusions 7131 can be configured to engaged with thefirst damping element 733 of the first damping group 73. In oneembodiment, the first sleeve portion 713 can have four protrusions 7131.The protrusions 7131 can be arranged along a circumferential directionof the first sleeve portion 713. That is, the protrusions 7131 arecentrosymmetric about the axis of the first sleeve portion 713. Oneaxial cross section can be defined by a position of one of theprotrusions 7131 and an axis of the first sleeve 713, another axialcross section can also be defined by the axis of the first sleeve 713and a position of another protrusion 7131 adjacent to one of theprotrusions 7131 mentioned above. An angel between the one axial crosssection and another axial cross section can be substantially 90 degrees.

Correspondingly, the first damping element 733 of the first dampinggroup 73 can define a number of recesses 7331 at an end surface towardsto the damping member 71. In one embodiment, the first damping element733 can define four recesses 7331. Four first damping elements 7331 canbe arranged along a circumferential direction of the first dampingelement 733. That is, the recesses 7331 are centrosymmetric about theaxis of the first damping element 733. Each of the protrusions 7131 canbe coupled with the corresponding recess 7331. When an angel between thefirst base body 521 and the second base body 523 is about 0 degree or180 degrees, the protrusions 7131 can be received in the correspondingrecesses 7331. Thus, the first elastic member 735 can be naturallyrelaxed, or can be slightly deformed. When the first base body 521 isrotated relative to the second base body 523, the first slave shaft 731is rotated together with the first rotation shaft 141, and the secondslave shaft 751 is rotated together with the second rotation shaft 143.The protrusions 7131 can move out of the corresponding recesses 7331.Thus, the first elastic element 735 and the second elastic element 755can be compressed to generate a damping force to the first base body 521and the second base body 523. As a result, the first base body 521 andthe second base body 523 can be rotated relative to each other only inthat case of an external force, and cannot be rotated by mistake. Whenthe angel between the first base body 521 and the second base body 523is 180 degrees or 0 degree, the protrusions 7131 can be engaged with thecorresponding recesses 7331 correspondingly. A user can feel that theprotrusions 7131 have been engaged with the corresponding recesses 7331.

In an alternative embodiment, an amount of the recesses 7331 and anamount of the protrusions 7131 can be other value, such as but notlimited to, 2, 3, 4, 5, 6, 7, 8 . . . . The user can feel the first basebody 521 has been rotated in right position relative to the second basebody 523. The angle of the first base body 521 and the second body 523can have more choices.

The housing assembly 90 can be configured to cover the connectionassembly 30 and the base assembly 50. The rotation assembly 10 can bereceived in the housing assembly 90. The housing assembly 90 can beconfigured to protect the rotation assembly 10, the connection assembly30, and the base assembly 50 and prevent external impurities fromentering into the rotation mechanism 100. Further, a better appearanceeffect of the rotation mechanism 100 can be obtained.

As illustrated in FIG. 9, a foldable mobile terminal 1000 is provided.The foldable mobile terminal 1000 may include one or more rotationmechanism 100, one or more decorating assemblies 200, a first body 301,a second body 303, a supporting assembly 400, and a display panelassembly 500.

In one embodiment, the foldable mobile terminal 1000 can include anumber of rotation assemblies 100 and a number of decorating assemblies200. Each of the decorating assemblies 200 can be positioned between twoadjacent rotation assemblies 100, and can be coupled to the two adjacentrotation assemblies 100. A configuration of the decorating assembly 200can be substantially similar to that of the rotation assembly 100.

The first body 301 can be coupled to the first slide base 54, while thesecond body 303 can be coupled to the second slide base 56. Thesupporting assembly 400 can be stacked on the rotation assemblies 100and the decorating assemblies 200. In one embodiment, the foldablemobile terminal 1000 includes two rotation assemblies 100 and onedecorating assembly 200. The first body 301 can be coupled to the firstslide bases 54 of each of the rotation assemblies 100, while the secondbody 303 can be coupled to the second slide bases 56 of each of therotation assemblies 100. Thus, the first body 301 and the second body303 can be rotated relative to each other by the rotation assemblies100. The first slide base 54 and the second slide base 56 can sliderelative the base body 52 when the first body 301 is rotated relative tothe second body 303. A distance between a center line of the rotationassembly 100 and a side of the first slide base 54 away from therotation assembly 100 can be changed, and a distance between the centerline of the rotation assembly 100 and a side of the second slide base 56away from the rotation assembly 100 can be changed. Thus, the displaypanel assembly 500 can be prevented from damage during folding orunfolding the foldable mobile terminal 1000. In an alternativeembodiment, one or more flexible printed circuit boards (FPC) can beprovided to couple to the first body 301 and the second body 303. Thus,the first body 301 and the second body 303 can communicate with eachother.

As illustrated in FIG. 10, the supporting assembly 400 can include asilicone member 410 and a supporting member 420. The supporting member420 can be overlapped on the silicone member 410. The supporting member420 can be formed on the silicone member 410 by in-mold decoration. Thesupporting member 420 can include two supporting portions 4201 and aflexible portion 4203. The flexible portion 4203 can be located betweenthe two supporting portions 4201, and can be coupled to the twosupporting portions 4201. The flexible portion 4203 can face therotation mechanism 100. In one embodiment, each of the supportingportions 4201 can be substantially a steel plate. Each of the flexibleportions 4203 can be substantially a slice of steel.

The display panel assembly 500 is mounted on the first body 301, thesecond body 303 and the supporting member 400. The display panelassembly 500 can include flexible display panel 501 and a flexible cover503 (see FIG. 9). The flexible cover 503 can be overlapped on andadhered to the flexible display panel 501.

As illustrated in FIG. 11, FIG. 12 and FIG. 13, the foldable mobileterminal 1000 can be in an unfolded mode, in an angular mode and in afolded mode. The first body 301 and the second body 303 can be rotatedat the same angel and at the same time by the rotation assemblies 100.

In addition, the first body 301 and the second body 303 can be rotatedrelative to each other. During rotating the first body 301 and thesecond body 303, a linkage generated between the connection assembly 30and the rotation assembly 10. A first distance between the center lineof the rotation mechanism 100 and the side of the first slide base 54away from the rotation mechanism 100 can be changed, and a seconddistance between the center line of the rotation mechanism 100 and theside of the second slide base 56 away from the rotation mechanism 100can be changed. A change value of the first distance is substantiallyequal to a change value of the second distance. Thus, the rotationassembly 10 can be prevent from moving towards a side of the first body301 or the second body 303. Further, the display panel assembly 500 willnot be stretched or compressed during folding or unfolding the foldablemobile terminal 1000.

While the disclosure has been described in terms of what is presentlyconsidered to be the most practical and preferred embodiments, it is tobe understood that the disclosure needs not be limited to the disclosedembodiment. On the contrary, it is intended to cover variousmodifications and similar arrangements included within the spirit andscope of the appended claims which are to be accorded with the broadestinterpretation so as to encompass all such modifications and similarstructures.

What is claimed is:
 1. A foldable mobile terminal comprising: aplurality of rotation mechanisms, each one of the rotation mechanismshaving: a rotation assembly, having: a position member, a first rotationshaft rotatably coupled to the position member, a second rotation shaftrotatably coupled to the position member and parallel to the firstrotation shaft, and a sliding member disposed between the first rotationshaft and the second rotation shaft; the sliding member being movedalong a direction parallel to an axis of the first rotation shaft byrotating the first rotation shaft and the second rotation; a baseassembly, having: a base body coupled to the rotation assembly, a firstslide base, slidably coupled to the base body, and a second slide baseslidably coupled to the base body; wherein the second slide base and thefirst slide base are located at two opposite sides of the base body; anda connection assembly, coupled to the base body and configured to bemoved by the sliding member so as to make the first slide base and thesecond slide base to slide relative to the base body along a directionperpendicular to the first rotation shaft; a first body, coupled to thefirst slide bases of the rotation mechanisms; a second body, coupled tothe second slide bases of the rotation mechanisms; and a display panelassembly, mounted on the first body, and the second body and therotation mechanism.
 2. The foldable mobile terminal as claimed in claim1, further comprising: a plurality of decorating assemblies, locatedbetween and coupled to two adjacent rotation mechanisms of the pluralityrotation mechanisms; and a supporting assembly, stacked on the pluralityof rotation mechanisms and the plurality of decorating assemblies;wherein the display panel assembly is further mounted on the supportingassembly.
 3. The foldable mobile terminal as claimed in claim 2, whereinthe supporting assembly comprises a silicone member and a supportingmember overlapped on the silicone member; the supporting membercomprises two supporting portions and a flexible portion located betweenthe two supporting portions; the rotation assembly faces the flexibleportion.
 4. The foldable mobile terminal as claimed in claim 1, wherein,the first rotation shaft defines at least one first inclined slot; thesliding member comprises at least one first protrusion; and the at leastone first protrusion is slidably engaged in the at least one firstinclined slot in one-to-one correspondence; the second rotation shaftdefines at least one second inclined slot; the sliding member comprisesat least one second protrusion; and the at least one second protrusionis slidably engaged in at least one second inclined slot in one-to-onecorrespondence.
 5. The foldable mobile terminal as claimed in claim 1,further comprising a connection member coupled to the sliding member andthe connection assembly; wherein the connection assembly is configuredto couple the first slide base and the second slide base to theconnection member so as to make the first slide base and the secondslide base to slide relative to the base body.
 6. The foldable mobileterminal as claimed in claim 5, wherein the connection member comprises:a connection portion, coupled to the sliding member; a first connectiongroup, coupled to the connection portion; the first connection grouphaving a first connection arm slidably sleeved on the first rotationshaft, and a second connection arm perpendicular to the first rotationshaft; and a second connection group, coupled to the connection portion;the second connection group having a third connection arm slidablysleeved on the first rotation shaft, and a fourth connection armperpendicular to the first rotation shaft; wherein the connectionassembly is coupled to the second connection arm of the first connectiongroup and the fourth connection arm of the second connection group. 7.The foldable mobile terminal as claimed in claim 5, wherein theconnection assembly comprises: a first connecting member, coupled to theconnection member; a first triangle connecting member, rotatably coupledto the first connecting member and the base body; a second connectingmember, coupled to the connection member; and a second triangleconnecting member, rotatably coupled to the second connecting member andthe base body; wherein a corner of the first triangle connecting memberis rotatably coupled to the first slide base, and a corner of the secondtriangle connecting member is rotatably coupled to the second slidebase.
 8. The foldable mobile terminal as claimed in claim 7, wherein thefirst connecting member comprises: a first connecting rod, coupled tothe connection member and parallel to the first rotation shaft; and afirst connecting plate, perpendicular to the first connecting rod;wherein one end of the first connecting plate is coupled to the firstconnecting rod; the other end of first connecting plate is rotatablycoupled to the first triangle connecting member.
 9. The foldable mobileterminal as claimed in claim 7, wherein the second connecting membercomprises: a second connecting rod, coupled to the connection member andparallel to the second rotation shaft; and a second connecting plate,perpendicular to the second connecting rod; wherein one end of thesecond connecting plate is coupled to the second connecting rod; theother end of second connecting plate is rotatably coupled to the secondtriangle connecting member.
 10. The foldable mobile terminal as claimedin claim 1, wherein the base body comprises: a first base body, coupledto the first rotation shaft; and a second base body, coupled to thesecond rotation shaft; wherein the first base body and the second basebody is symmetrically arranged; the first slide base is slidably coupledto the first base body; the second slide base is slidably coupled to thesecond base body; a move direction of the first slide base and a movedirection of the second slide base are perpendicular to the firstrotation shaft.
 11. The foldable mobile terminal as claimed in claim 10,wherein the rotation mechanism further comprises a damping assemblycoupled to the first base body and the second base body; the dampingassembly is configured to generate a damping force to the first basebody and the second base body during rotating the first base bodyrelative to the second base body.
 12. The foldable mobile terminal asclaimed in claim 11, wherein the damping assembly comprises: a firstdamping group, coupled to the first base body; the first damping grouphaving: a first slave shaft coupled to the first base body, a firstdamping element slidably sleeved onto the first slave shaft andconfigured to be rotated together with the first slave shaft, a firstblocking element fixed to the first slave shaft, and a first elasticelement located between the first damping element and the first blockingmember; a second damping group, coupled to the second base body; thesecond damping group having: a second slave shaft coupled to the secondbase body, a second damping element slidably sleeved onto the secondslave shaft and configured to be rotated together with the second slaveshaft, a second blocking element fixed to the second slave shaft, and asecond elastic element located between the second damping element andthe second blocking member; and a damping member, penetrated through bythe first slave shaft and the second slave shaft, and coupled to thefirst damping element of the first damping group and the second dampingelement of the second damping group; wherein the damping membercomprises a plurality of protrusions towards the first damping elementand the second damping element, each of the first damping element andthe second damping element defining a plurality of recessescorresponding to the plurality of protrusions, each of the plurality ofprotrusions is configured to be engaged in one of the protrusionsrecesses.
 13. The foldable mobile terminal as claimed in claim 1,wherein the rotation mechanism further comprises a housing assembly; thehousing assembly covers the base body; the rotation assembly is receivedin the housing assembly.
 14. A foldable mobile terminal comprising: arotation mechanism having: a rotation assembly, having: a positionmember, a first rotation shaft rotatably coupled to the position member,a second rotation shaft rotatably coupled to the position member andseparated from and parallel to the first rotation shaft, and a slidingmember disposed between the first rotation shaft and the second rotationshaft; a distance between the first rotation shaft and the secondrotation shaft remaining constant by the position member; the slidingmember being moved along a direction parallel to an axis of the firstrotation shaft by rotating the first rotation shaft and the secondrotation; a base assembly, having: a base body coupled to the rotationassembly, a first slide base slidably coupled to the base body, and asecond slide base slidably coupled to the base body; wherein the secondslide base and the first slide base are located at two opposite sides ofthe base body; and a connection assembly, coupled to the connectionmember, and rotatably and slidably coupled to the base body; theconnection assembly being configured to couple the first slide base andthe second slide base to the connection member so as to make the firstslide base and the second slide base to slide relative to the base body;a first body, coupled to the first slide base; a second body, coupled tothe second slide base; and a display panel assembly, mounted on thefirst body, and the second body and the rotation mechanism.
 15. Thefoldable mobile terminal as claimed in claim 14, wherein the connectionassembly comprises: a first connecting member, coupled to the connectionmember; a first triangle connecting member, rotatably coupled to thefirst connecting member and the base body; a second connecting, member,coupled to the connection member; and a second triangle connectingmember, rotatably coupled to the second connecting member and the basebody; wherein a corner of the first triangle connecting member isrotatably coupled to the first slide base, and a corner of the secondtriangle connecting member is rotatably coupled to the second slidebase.
 16. The foldable mobile terminal as claimed in claim 14, wherein,the first rotation shaft defines at least one first inclined slot; thesliding member comprises at least one first protrusion; and the at leastone first protrusion is slidably engaged in the at least one firstinclined slot in one-to-one correspondence; the second rotation shaftdefines at least one second inclined slot; the sliding member comprisesat least one second protrusion; and the at least one second protrusionis slidably engaged in at least one second inclined slot in one-to-onecorrespondence.
 17. The foldable mobile terminal as claimed in claim 14,further comprising a connection member coupled to the sliding member andthe connection assembly; wherein the connection assembly is configuredto couple the first slide base and the second slide base to theconnection member so as to make the first slide base and the secondslide base to slide relative to the base body.
 18. The foldable mobileterminal as claimed in claim 14, wherein the base body comprises: afirst base body, coupled to the first rotation shaft; and a second basebody, coupled to the second rotation shaft; wherein the first base bodyand the second base body is symmetrically arranged; the first slide baseis slidably coupled to the first base body; the second slide base isslidably coupled to the second base body; a move direction of the firstslide base and a move direction of the second slide base areperpendicular to the first rotation shaft.
 19. A foldable mobileterminal comprising: a rotation mechanism having: a rotation assembly,having: a position member, a first rotation shaft rotatably coupled tothe position member, a second rotation shaft rotatably coupled to theposition member and separated from and parallel to the first rotationshaft, and a sliding member disposed between the first rotation shaftand the second rotation shaft; a distance between the first rotationshaft and the second rotation shaft remaining constant by the positionmember; a base assembly, having: a base body coupled to the rotationassembly, a first slide base slidably coupled to the base body, and asecond slide base slidably coupled to the base body; wherein the secondslide base and the first slide base are located at two opposite sides ofthe base body; and a connection assembly, coupled to the connectionmember, and rotatably and slidably coupled to the base body; a firstbody, coupled to the first slide base; a second body, coupled to thesecond slide base; and a display panel assembly, mounted on the firstbody, and the second body and the rotation mechanism.
 20. The foldablemobile terminal as claimed in claim 19, wherein the connection assemblycomprises: a first connecting member, coupled to the connection member;a first triangle connecting member, rotatably coupled to the firstconnecting member and the base body; a second connecting member, coupledto the connection member; and a second triangle connecting member,rotatably coupled to the second connecting member and the base body;wherein a corner of the first triangle connecting member is rotatablycoupled to the first slide base, and a corner of the second triangleconnecting member is rotatably coupled to the second slide base.